Catch and Size Distribution of Neritic Tunas from Purse seine in Andaman sea Coast of Thailand, 2012

Neritic tunas caught mainly from purse seine: Thai purse seine, light luring purse seine, purse seine with aggregating devices and Tuna purse seine along the Andaman Sea Coast of Thailand in 2012. Four species of neritic tunas were caught longtail tuna (Thunnus tonggol) 9.33 % kawakawa (Euthynnus affinis) 7.33%, frigate tuna (Auxis thazard) 3.62 % and bullet tuna (Auxis rochei) 2.99 % of total catch, although bullet tuna caught mainly in the northern part while frigate tuna caught mainly in the southern part of Andaman Sea.Total CPUE of neritic tunas was 545.59 kg/day, which compose of kawakawa 170.36 kg/day, longtail tuna 217.00 kg/day, bullet tuna 69.47 kg/day and frigate tuna 84.16, kg/day. The highest CPUE was caught from Tuna purse seine. Mean of folk length of kawakawa was 24.88 cm (10-59.5cm), longtail tuna was 36.69 cm (14.0-30.0cm), bullet tuna was 23.39 cm (12.0-39.0cm) and frigate tuna was 30.86 cm (11.5-43.5cm). Tuna purse seine was caught the bigger size of neritic tunas than other gears.